<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../vue.js"></script>
</head>
<body>
    <div id="root">
        <h1>学校信息</h1>
        <h2>学校名称: {{name}}</h2>
        <h2>学校地址: {{address}}</h2>
        <!-- <h2 v-if="leader">学校校长: {{leader}}</h2> -->
        <hr>
        <h1>学生信息</h1>
        <button @click="addSex">添加一个性别属性,默认男</button>
        <h2>姓名: {{student.name}}</h2>
        <h2 v-if="student.sex">性别: {{student.sex}}</h2>
        <h2>年龄: 真实:{{student.age.rAge}}, 对外:{{student.age.sAge}}</h2>
        <h2>朋友们</h2>
        <ul>
            <li v-for="(f,index) in student.friends" :keys="index">
                {{f.name}}--{{f.age}}
            </li>
        </ul>
        <h2>爱好</h2>
        <ul>
            <li v-for="(h,index) in student.hobby" :keys="index">
                {{h}}
            </li>
        </ul>
    </div>

    <script>

        Vue.config.productionTip = false


       const vm = new Vue({
            el: '#root',
            data: {
                name: '尚硅谷',
                address: '北京',
                student: {
                    name: 'tom',
                    age: {
                        rAge: 40,
                        sAge: 18
                    },
                    friends: [
                        {name: 'jerry', age:35},
                        {name: 'tony', age:36}
                    ],
                    hobby: ['抽烟', '喝酒', '烫头']
                },
            },
            methods: {
                addSex () {
                    //Vue.set只能给data里的对象添加属性,不能给data添加属性
                    Vue.set(this.student,'sex','男')
                    this.$set(this.student,'sex','男')
                }
            }
        })

    </script>

</body>
</html>